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The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period.
The expensive tissue hypothesis (ETH) relates brain and gut size in evolution (specifically in human evolution).It suggests that in order for an organism to evolve a large brain without a significant increase in basal metabolic rate (as seen in humans), the organism must use less energy on other expensive tissues; the paper introducing the ETH suggests that in humans, this was achieved by ...
The first debates about the nature of human evolution arose between Thomas Henry Huxley and Richard Owen. Huxley argued for human evolution from apes by illustrating many of the similarities and differences between humans and other apes, and did so particularly in his 1863 book Evidence as to Man's Place in Nature.
Decomposition is the process in which the organs and complex molecules of animal and human bodies break down into simple organic matter over time. In vertebrates , five stages of decomposition are typically recognized: fresh, bloat, active decay, advanced decay, and dry/skeletonized. [ 1 ]
The endosymbiotic theory for the origin of organelles sees a form of horizontal gene transfer as a critical step in the evolution of eukaryotes. [ 162 ] [ 163 ] The endosymbiotic theory holds that organelles within the cells of eukorytes such as mitochondria and chloroplasts had descended from independent bacteria that came to live ...
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The Phenomenon of Man (French: Le phénomène humain) is an essay by the French geologist, paleontologist, philosopher, and Jesuit priest Pierre Teilhard de Chardin.In this work, Teilhard describes evolution as a process that leads to increasing complexity, culminating in the unification of consciousness.
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